File:Comet Lovejoy (C2014 Q2) and the Pleiades (M45).jpg

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English: Comet C/2014 Q2 (Lovejoy) near Messier 45, the Pleiades. Photographed using a Nikon D750 camera, 180mm f/4, 28x30 sec at ISO 12800.

Posted to Slider's Sunday, even though the post-processing is relatively mild by that group's standards. In particular, let me emphasize that Lovejoy and the Pleiades really did share this little section of the sky. But posted to SS because it used a new (to me) color processing strategy.

Averaged the multiple (28) images in DeepSkyStacker, and imported the result into the Gimp, along with -- and this was the innovation -- an extra copy of the last exposure as a new layer. I roughly white-balanced out the skyglow in the new layer, smoothed it, bumped up the contrast (which has the effect of increasing saturation), and made this the "color" layer to emphasize the actual green and blue colors of the comet and stars.
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Source https://www.flickr.com/photos/theilr/16307430181/
Author theilr

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This image was originally posted to Flickr by theilr at https://www.flickr.com/photos/90863480@N00/16307430181. It was reviewed on 31 January 2015 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-sa-2.0.

31 January 2015

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current20:05, 30 January 2015Thumbnail for version as of 20:05, 30 January 20156,005 × 4,003 (21.77 MB)Huntster (talk | contribs)User created page with UploadWizard

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